package com.chris.cc.app.listener;

import cn.hutool.json.JSONObject;
import com.chris.cc.common.event.EurekaInstanceEvent;
import com.chris.cc.app.service.wrapper.AppWrapper;
import com.chris.cc.app.service.wrapper.MenuWrapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.bus.event.RemoteApplicationEvent;
import org.springframework.cloud.bus.event.UnknownRemoteApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;

/**
 * Copyright (c) 2018-2025, chris All rights reserved.
 * <p>
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * <p>
 * Redistributions of source code must retain the above copyright notice,
 * this tree of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 * notice, this tree of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * Neither the name of the pig4cloud.com developer nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * <p>
 * Author: haoka (haokang207@126.com)
 * <p>
 * Date: 2018/8/27 14:01
 **/
@Component
@Slf4j
public class EurekaEventListener implements ApplicationListener<RemoteApplicationEvent> {

    @Autowired
    private MenuWrapper menuWrapper;
    @Autowired
    private AppWrapper appWrapper;

    @Override
    public void onApplicationEvent(RemoteApplicationEvent event) {
        if (event instanceof UnknownRemoteApplicationEvent) {
            UnknownRemoteApplicationEvent unknownRemoteApplicationEvent = (UnknownRemoteApplicationEvent) event;
            String payload = unknownRemoteApplicationEvent.getPayloadAsString();
            EurekaInstanceEvent instanceEvent = new JSONObject(payload).toBean(EurekaInstanceEvent.class);
            log.info("收到事件：" + instanceEvent.getAppName() + (instanceEvent.getUp() ? "上线" : "下线"));
            if (!appWrapper.hasInstance(instanceEvent.getAppName())) {
                menuWrapper.hideMenuOnAppDown(instanceEvent.getAppName());
            } else {
                menuWrapper.showMenuOnAppUp(instanceEvent.getAppName());
                appWrapper.refreshInterface(instanceEvent.getAppName());
            }
        }
    }
}
